Trees and telephone lines don't mix

I was just getting ready to go back to work after lunch - so it would have been nearly half past two - when a little drama unfolded outside my front window.
A white van came along the road, towing a trailer which held three tall trees, standing upright. And these were trees, not little saplings. They made it under the first three telephone wires that are strung across the street just about okay - but snagged the fourth and pulled the mounting off the wall.
They stopped, and laid the trees down in the trailer to get under - but it was too late by then, and they left the length of wire trailing across the street like a skipping rope. And just drove off. Okay, they had to get out of the way because there was other traffic backing up - but they didn't come back that I saw.
Just after they left the scene, a Hay and Brecon Farmers lorry came along, and the wire caught between their cab and the body of the lorry. Fortunately, they'd seen it and were moving very slowly, so they were able to stop and hook the wire over the top of the lorry and carry on.
I had to leave then, and when I came back this evening, I saw that the wire had been snapped, and was tucked out of the way behind the lamp post.

I did manage to get the first half of the van's number plate - L344, and all of the trailer's number plate X59 XTU - so if anyone's looking for the people who did it....